I've been using this for the past 7 months and I'll never go back to liquid shampoo. I even brought it with me on a trip, which I've never bothered to do with my other shampoos! It lathers like a dream and leaves my hair feeling clean but not stripped. I also highly recommend the conditioner, which leaves my hair feeling so silky without any feeling of heaviness or residue. I'd guess that the shampoo bar will last me about 75 washes with long hair (not really equivalent to 3 bottles of shampoo for me, but still decent).